Refrigerating receptacle



Aug. 28, 1923.

E. C. CALKINS REFRIQERATING RECEPTACLE vFiled Oct. 50

Patented Aug.. 2g, lElEiZ'i.l

l intense-1 EDWARD o. oaLKrNs, Aor BnooKLYn, New ronmnssienon ro '1. o. RErRiGEnATioN ooiiiriiiir, a conronn'rioiv' or DELewA'nnf.

niirnidiinarino mionifinioiinaY Application filed October 30, 1922. Serial NO. 597,721.

To QZ?, whom t may concern.' Y s Be it known that Finwniin C. CAiiiiiNs, a citizen of the United States, residing` at Brooklyn, county of Kings, State of N .v York, have invented a new and useful Inipiovenient in Refrigerating Receptacles, of which the following is specification.

y The present invention relates to a system and apparatus for refrigeration byfheat exchange, and consists in the combinations and arrangements of elements hereinafter described and particularly set forth in the appended claims. .Y

The invention has for its purpose to pro-V vide a refrigeratiiig apparatus wherein thc cooling is eiifected by convection cui-rents of atluid heat transfer medium in as.-'-:oci.a` tion with the material which it is de to preserve; and wherein no oper; mechanism of any character is en-iployed.

i further purpose is the provision of an apparat-us of this character adapted and suitable to the special requirements small stores and likev places whore ice-creare and other perishable commodities are dispensed to a retail trade; and which may be kept in proper service at small cost without requiring any special knowledge or appreciable time of the attendant.

The invention is further characterized by compactness and simplicity, small costy ol maintenance, and the Vemployment of iced brine as the refrigerant medium which can D l a be conveniently replenished ano kept free oi' foreign matter and out of contact with the commodity preserved and for giving access to such commodity without hindrance' to any other part or .interference with the working of the system.

T he invention is disclosed by way of illus*- tration in the accon'ipanying drawings, wherein Figure l is a top plan sectional view of the apparatus taken on the line 1 1 of Fig. 2, and Y Fig. 2 is a longitudinal sectional view of the same taken on line 2v2, Fig. l.

' Referring to the construction in further detail, the'apparatus consists of an outer receptacle or container preferably of rectangular shape and having double walls 3, providing a space for any suitable heat insulating material 4.-, e. g., cork, asbestos,A

mineral wool or the like. The top of the receptacle is constructed to provide removJ able closures 5 and 6V at the respective ends thereof, and an intermediate and relatively x similar closure 7', and all of said-closures areiin like manner of double-walled construction to receive a filling oli-insulating material al, as will the body portion of the receptacle. The two closures 5 and may be hinged to theV receptacle proper, or entire ly removed Yas preferred, and Vgive access to the two inner receptacles 7 and 8v con- Struotedpreferably of metal, which receivev the refrigerant medium, which in the pres-VY ent in 'tance' consists'of ice-cooledbrine.

The Varrangeinent and relative Yproportions-of the receptacles and 8 and the refrigerant receptacle 1l arev such j'that spaceslQ and 13 are'provided to permit voi convection Vcurrents to flow in a manner to be further explained.

iictween the side-wall portions ofthe inne." an.- outer receptacles, and suitably secured therein, are arranged on opposite` sides, two pairs of spacing members, in the.

form of metallic strips l/l and 1 5 upwardly converging, as shownin Fig. 2, to provide suitable side'spaoes between the receptacles and partitioning the same in such manner that the convection currents will iiow from the respective lower ends of the outer receptacle upwardly and toward the refrigerant receptacle as indicated by the arrows. By this arrangement.v the warmer currents of the refrigerant solution will'constantly move towards colder central and upper parts of the refrigerator, and there will be vcooled and continueY to circulate entirely around the'containers 9 in the receptacles? and 8. This will result in the maintenance of substantially uniform temperature throughout the course of the circulating refrigerant, with the result that the material in the containers will be maintained at substantially uniform temperature throughout4 The presence of the warmer brine cur-1V rents passing through the'endinost passages 12 will have no. undesirable effect upon the material in the 4containers inasmuch as said containers will be subjected vto lthe influence of the coldest brine currents.Y In other Words, the degree or range oi'f temperature in al1 parts of the system is within such limits that no appreciable'deterioration ofY the commodity will'occur.

vlt will therefore be seen going that the apparatus may be maintained at maximum'eiiiciency with small cost, and that the several containers. 9,Y or theV receptacles 7 or 8 easily replaced or ren'ioved Without interference with any other part et the apparatus, and without interfering with the system of operation.

Draw-off v `taucet 16 coniinui'iicates with the lower portion of the receptacle, and a vent or similar fixture 17 communicates with the upper' 'portion of ythe receptacle7 as shown.

It is obvious that those skilled in the art may Vary the details oi construction and arrangement of parts without departing from the spirit of my inventioir and, therefore, I do not wish to be limited to such features except as may be required by the claims.

What is claimed is:

l. A refrigerating apparatus comprising Vvices between said receptacles providing Atherewith a circuitous passageway around the inner receptacle tori convection currents of a refrigerant solution, and a container for the refrigerant solution located in comif'roni the fore#Y inunicating relation with said passageway, substantially ras set forth. v

3. A refrigerating apparatusV comprising an outer receptacle, an inner receptacle, diagonally disposed spacing members beproviding. a circuitous passageway around the inner receptacle for convection currents of a refrigerant solution, and a container for the refrigerant solution located inthe outer receptacle in 'communicating relation with said passageway, substantially as set.

t. A refrigerating apparatus comprising an outer receptacle7 inner receptacles7 diagonally disposed spacing members between said receptacles attlie sides thereof providing circuitous passageways Varound the inner receptacles for directing opposed convection currents ot a refrigerant Vsolution7 and a 'container for the refrigerant solutionY between said inner receptacles in communicating relation with said passageways, substantially as set forth.

5. A retrigerating apparatus comprising an outer receptacle. opposed inner rccepta cles spaced from the bottom and end lwalls of the outer receptacle,opposed diagonal spacing members between said inner and outer receptacles at the sides thereof' providing upwardly converging and circuitous passageways Aaround the inner receptacles for directing` convectioncurrents ot a refrigerant solution, and a perforated con tainer forY the refrigerant solution between said inner receptacles in communicating relation with said passageway, substantially as set forth. Y

.ln testimony whereof, I have signed Viny naine to this specification in the presence of two subscribing witnesses, this 27th day' ot' October 1922.

EDWARD C. CALKINS.

tween said receptacles at the sides thereoi1 

